Supplementary box for telephone



FIG. 1 is a top perspective view of a supplementary box for telephone, showing my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a right side perspective view thereof.

FIG. 4 is a left side perspective view thereof; and,

FIG. 5 is a rear perspective view thereof. 

The ornamental design for a supplementary box for telephone, as shown and described. 